Originally, Reach Township was located in York County in the Home District of Upper Canada. The first settler arrived in 1821. Ontario County was established as a separate county in 1852. When Ontario and Durham Counties were merged into Durham Region in 1974, the Township of Reach was merged with Scugog and Cartwright, its neighbouring townships to the east, under the name Scugog.

This drawing from Wikipedia shows Scugog Township adjacent to the other municipalities of Durham Region. It can be compared with
a similar map from Ontario GenWeb illustrating Ontario County prior to 1974.

Port Perry remains the chief commercial and administrative centre of the municipality. Throughout the township there are many cemeteries attached to churches, but Pine Grove Cemetery in Prince Albert serves a wide area and memorials go back to the 1870s.

Research Tips

NOTE: The 1851 census for Reach did not survive to the time when the census was microfilmed in 1955.

The primary source for basic documents (vital statistics, land records, wills) for people who lived in the Province of Ontario is the Archives of Ontario, 134 Ian Macdonald Blvd, Toronto, Ontario, Canada M7A 2C5.

Early Records

Civil registration did not begin in the province until 1869. Before then there may be church records of baptisms and burials. For the most part these are still held by the denomination who recorded them. Copies of marriage records made pre-1869 had to be sent by individual clergymen to the registrar of the county in which the marriage took place. These marriage records are available through Ontario Archives, on micorfilm through LDS libraries, and on paid and unpaid websites, but because they were copied at the registrars' offices, they cannot be considered a primary source.

Vital Records after 1869

Birth, marriage and death registrations are not open to the public until a specific number of years after the event occurred. Births to 1915 are now available [October 2014]; dates for marriages and deaths are later. Birth and death registration was not universally carried out in the early years after its adoption. Deaths were more apt to be reported than births for several years. The more rural the area, the less likely it would be that these happenings were reported to the authorities.
Images and indexes of civil registrations for the "viewable" years can be found on paid websites, and indexes only on FamilySearch. The FamilySearch Wiki on Ontario Vital Records explains how these records are organized and their availability.
In September 2014 Ancestry.ca announced that its paid website has been subjected to a "houseclean" of its Ontario BMD database, adding data that had been omitted and making many corrections. Its provision now includes

Births, with 2,172,124 records covering 1869-1913.

Marriages, with 3,393,369 records for 1801-1928 including Ontario county, district and Roman Catholic origins as well as province-wide civil registration.

Censuses

The original censuses are in the hands of Library and Archives Canada, known to Canadians as "LAC". Copies of original microfilms are online at the LAC website for all censuses up to 1911. Each census database is preceded with an explanation of the geographical area covered, the amount of material retained (some census division material has been lost), the questions on the census form, and whether there is a name index. Census divisions were redrawn as the population increased and more land was inhabited. The 1921 census is only available through Ancestry.ca, but it is free-to-view. Other websites, some paid and some free, also provide Canadian census originals and/or indexes online. One can also view censuses on microfilm at the LAC, at the Archives of Ontario (see address above), or at large libraries throughout Canada.

Archives of Ontario have a web page titled "The Changing Face of Ontario" (which is very hard to find without this link). This provides maps of Ontario and its divisions in the 19th century (pre Confederation in 1867) and also includes links to series of historical maps of the individual counties as they were between 1867 and the 1970s when a huge reorganization of municipalities began. The Districts of Northern Ontario and Maps of Southern and Central Ontario circa 1951 show the townships of each county.

Whitby Public Library have digitized an index of vital statistics and have linked them to page images from 140 years of various newspaper titles from the Whitby area; OCR full text searching will be available before the end of the year (2012).

The Port Perry/Scugog Heritage Gallery is a website produced by "Observer Publishing of Port Perry" which contains articles by Rev R Monteith written in 1859 describing different parts of Reach Township from the time of the earliest settler in 1821 to his own day. Observer Publishing appears to have more offline material as well.